HS Code for Trichlorfon

Trichlorfon is classified under HS code 2931.54. This substance is an organo-phosphorus compound used primarily as an insecticide. Within Chapter 29 (Organic chemicals), Heading 2931 covers organo-inorganic compounds. Subheading 2931.54 is a specific provision for Trichlorfon (ISO), which is chemically known as dimethyl (2,2,2-trichloro-1-hydroxyethyl)phosphonate. The classification is determined by the presence of a direct carbon-phosphorus bond, which characterizes organo-phosphorus derivatives. This specific subheading was established to facilitate the monitoring of this chemical under international conventions, such as the Rotterdam Convention. It is important to note that this code applies to the pure chemical or technically pure substance. The classification follows GRI 1 and 6, as the chemical is explicitly named in the Harmonized System subheadings. Trichlorfon is a white crystalline solid that is soluble in water and various organic solvents, and its classification remains in Chapter 29 as long as it is not mixed with other ingredients for use as a finished pesticide product.

Products Included

• Pure Trichlorfon (ISO)
• Technically pure dimethyl (2,2,2-trichloro-1-hydroxyethyl)phosphonate
• Trichlorfon in bulk crystalline form
• Trichlorfon dissolved in a solvent (provided it is not a finished preparation)
• Unmixed Trichlorfon for industrial manufacturing

Common Misclassification

Trichlorfon is often misclassified under HS code 3808.91, which covers insecticides formulated for retail sale or as finished preparations. If the Trichlorfon is mixed with carriers or surfactants to be used directly as a pesticide, it must move to Chapter 38. Another error is using HS code 2931.59, which is the residual category for other organo-phosphorus derivatives. Since Trichlorfon has its own specific subheading (2931.54), the residual code is incorrect.

FAQ

What is the HS code for Trichlorfon?

The HS code for Trichlorfon is 2931.54, which is the specific code for this organo-phosphorus compound.

Is formulated Trichlorfon insecticide classified under 2931.54?

No, if the Trichlorfon is formulated as a finished insecticide for retail sale, it is classified under HS code 3808.91.